20511247680

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 1120

約数和(自身を含む): 93470699520

約数和(自身を除く): 72959451840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 27, 28, 30, 32, 33, 35, 36, 40, 42, 43, 44, 45, 48, 54, 55, 56, 60, 63, 64, 66, 70, 72, 77, 80, 81, 84, 86, 88, 90, 96, 99, 105, 108, 110, 112, 120, 126, 129, 132, 135, 140, 144, 154, 160, 162, 165, 168, 172, 176, 180, 189, 192, 198, 210, 215, 216, 220, 224, 231, 239, 240, 252, 258, 264, 270, 280, 288, 297, 301, 308, 315, 320, 324, 330, 336, 344, 352, 360, 378, 385, 387, 396, 405, 420, 430, 432, 440, 448, 462, 473, 478, 480, 495, 504, 516, 528, 540, 560, 567, 576, 594, 602, 616, 630, 645, 648, 660, 672, 688, 693, 704, 717, 720, 756, 770, 774, 792, 810, 840, 860, 864, 880, 891, 903, 924, 945, 946, 956, 960, 990, 1008, 1032, 1056, 1080, 1120, 1134, 1155, 1161, 1188, 1195, 1204, 1232, 1260, 1290, 1296, 1320, 1344, 1376, 1386, 1419, 1434, 1440, 1485, 1505, 1512, 1540, 1548, 1584, 1620, 1673, 1680, 1720, 1728, 1760, 1782, 1806, 1848, 1890, 1892, 1912, 1935, 1980, 2016, 2064, 2079, 2112, 2151, 2160, 2240, 2268, 2310, 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17208, 17415, 17820, 18060, 18144, 18403, 18480, 18576, 18920, 19008, 19120, 19264, 19359, 19866, 20076, 20160, 20554, 20640, 20790, 21032, 21285, 21510, 21672, 22176, 22680, 22704, 22944, 23220, 23661, 23760, 24080, 24381, 24640, 24768, 24948, 25095, 25542, 25812, 25920, 26290, 26488, 26768, 27090, 27720, 27864, 28380, 28512, 28680, 28896, 29799, 30114, 30240, 30272, 30831, 30960, 31185, 31548, 31680, 32265, 32508, 33110, 33264, 33460, 34056, 34416, 34830, 35640, 36120, 36288, 36806, 36960, 37152, 37840, 38240, 38313, 38718, 39435, 39732, 40152, 40635, 41108, 41280, 41580, 42064, 42570, 43020, 43344, 44352, 45171, 45360, 45408, 45888, 46440, 47322, 47520, 48160, 48762, 49665, 49896, 50190, 51084, 51385, 51624, 52580, 52976, 53536, 54180, 55209, 55440, 55728, 56760, 57024, 57360, 57792, 59598, 60228, 60480, 61662, 61920, 62370, 63096, 63855, 64530, 65016, 66220, 66528, 66920, 68112, 68832, 69660, 70983, 71280, 71939, 72240, 73612, 73920, 74304, 75285, 75680, 76480, 76626, 77436, 78870, 79464, 80304, 81270, 82216, 83160, 84128, 85140, 86040, 86688, 89397, 90342, 90720, 90816, 92015, 92493, 92880, 94644, 95040, 96320, 96795, 97524, 99330, 99792, 100380, 102168, 102770, 103248, 105160, 105952, 107072, 108360, 110418, 110880, 111456, 113047, 113520, 114720, 118305, 119196, 120456, 121905, 123324, 123840, 124740, 126192, 127710, 129060, 130032, 132440, 133056, 133840, 135513, 136224, 137664, 139320, 141966, 142560, 143878, 144480, 147224, 148995, 150570, 151360, 153252, 154155, 154872, 157740, 158928, 160608, 162540, 164432, 165627, 166320, 168256, 170280, 172080, 173376, 178794, 180684, 181440, 184030, 184986, 185760, 189288, 191565, 193590, 195048, 198660, 199584, 200760, 204336, 205540, 206496, 210320, 211904, 212949, 215817, 216720, 220836, 221760, 222912, 225855, 226094, 227040, 229440, 236610, 238392, 240912, 243810, 246648, 249480, 252384, 255420, 258120, 260064, 264880, 267680, 268191, 271026, 272448, 276045, 277479, 278640, 283932, 285120, 287756, 288960, 294448, 297990, 301140, 306504, 308310, 309744, 315480, 317856, 321216, 325080, 328864, 331254, 332640, 339141, 340560, 344160, 354915, 357588, 359695, 361368, 368060, 369972, 371520, 378576, 383130, 387180, 390096, 397320, 399168, 401520, 408672, 411080, 412992, 420640, 425898, 431634, 433440, 441672, 446985, 451710, 452188, 454080, 462465, 473220, 476784, 481824, 487620, 493296, 496881, 498960, 504768, 510840, 516240, 520128, 529760, 535360, 536382, 542052, 552090, 554958, 557280, 565235, 567864, 575512, 588896, 595980, 602280, 613008, 616620, 619488, 630960, 635712, 647451, 650160, 657728, 662508, 665280, 677565, 678282, 681120, 688320, 709830, 715176, 719390, 722736, 736120, 739944, 757152, 766260, 774360, 780192, 791329, 794640, 803040, 817344, 822160, 828135, 832437, 841280, 851796, 863268, 866880, 883344, 893970, 903420, 904376, 924930, 946440, 953568, 963648, 975240, 986592, 993762, 997920, 1017423, 1021680, 1032480, 1059520, 1064745, 1072764, 1079085, 1084104, 1104180, 1109916, 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21365883, 21455280, 21682080, 21705024, 22198320, 22714560, 23020480, 23308236, 23739870, 23850288, 24418152, 25322528, 25898040, 26500320, 26637984, 27131280, 28487844, 28607040, 29135295, 29597760, 29812860, 30522690, 31077648, 31653160, 31800384, 32557536, 33297480, 34071840, 34530720, 35609805, 36175040, 36627228, 37983792, 38847060, 39750480, 40696920, 41436864, 42731766, 42910560, 43364160, 44396640, 45784035, 46616472, 47479740, 47700576, 48836304, 50645056, 51796080, 53000640, 53275968, 54262560, 56975688, 58270590, 59625720, 61045380, 62155296, 63306320, 64097649, 65115072, 66594960, 68143680, 69061440, 71219610, 73254456, 75967584, 77694120, 79500960, 81393840, 85463532, 85821120, 88793280, 91568070, 93232944, 94959480, 95401152, 97672608, 103592160, 106829415, 108525120, 113951376, 116541180, 119251440, 122090760, 124310592, 126612640, 128195298, 133189920, 142439220, 146508912, 151935168, 155388240, 159001920, 162787680, 170927064, 183136140, 186465888, 189918960, 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約数ペア:

[(1, 20511247680), (2, 10255623840), (3, 6837082560), (4, 5127811920), (5, 4102249536), (6, 3418541280), (7, 2930178240), (8, 2563905960), (9, 2279027520), (10, 2051124768), (11, 1864658880), (12, 1709270640), (14, 1465089120), (15, 1367416512), (16, 1281952980), (18, 1139513760), (20, 1025562384), (21, 976726080), (22, 932329440), (24, 854635320), (27, 759675840), (28, 732544560), (30, 683708256), (32, 640976490), (33, 621552960), (35, 586035648), (36, 569756880), (40, 512781192), (42, 488363040), (43, 477005760), (44, 466164720), (45, 455805504), (48, 427317660), (54, 379837920), (55, 372931776), (56, 366272280), (60, 341854128), (63, 325575360), (64, 320488245), (66, 310776480), (70, 293017824), (72, 284878440), (77, 266379840), (80, 256390596), (81, 253225280), (84, 244181520), (86, 238502880), (88, 233082360), (90, 227902752), (96, 213658830), (99, 207184320), (105, 195345216), (108, 189918960), (110, 186465888), (112, 183136140), (120, 170927064), (126, 162787680), (129, 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(528, 38847060), (540, 37983792), (560, 36627228), (567, 36175040), (576, 35609805), (594, 34530720), (602, 34071840), (616, 33297480), (630, 32557536), (645, 31800384), (648, 31653160), (660, 31077648), (672, 30522690), (688, 29812860), (693, 29597760), (704, 29135295), (717, 28607040), (720, 28487844), (756, 27131280), (770, 26637984), (774, 26500320), (792, 25898040), (810, 25322528), (840, 24418152), (860, 23850288), (864, 23739870), (880, 23308236), (891, 23020480), (903, 22714560), (924, 22198320), (945, 21705024), (946, 21682080), (956, 21455280), (960, 21365883), (990, 20718432), (1008, 20348460), (1032, 19875240), (1056, 19423530), (1080, 18991896), (1120, 18313614), (1134, 18087520), (1155, 17758656), (1161, 17666880), (1188, 17265360), (1195, 17164224), (1204, 17035920), (1232, 16648740), (1260, 16278768), (1290, 15900192), (1296, 15826580), (1320, 15538824), (1344, 15261345), (1376, 14906430), (1386, 14798880), (1419, 14454720), (1434, 14303520), (1440, 14243922), (1485, 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